共查询到20条相似文献,搜索用时 187 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
Dr. Vishwajit J. Gupta Dr. Vikram C. Thakur 《International Journal of Earth Sciences》1974,63(2):548-558
In the present paper an attempt has been made to describe the geology of the area around Dharmsala, Kangra District, Himachal Pradesh. The stratigraphic position of the problematic horizons, i. e., Dharmkot Limestone and Dharmsala Traps is discussed in detail. 相似文献
9.
10.
11.
12.
13.
14.
15.
16.
17.
Petrology and sedimentation of the middle siwalik clays at dholkhand,saharanpur district,U.P., India
Nityananda Bhattacharya Sarada Saran Misra 《Contributions to Mineralogy and Petrology》1963,9(2):139-147
The Middle Siwalik clays at Dholkhand, Saharanpur district, U. P., in India were studied to investigate the nature of Siwalik (middle Miocene to lower Pleistocene) sedimentation in relation to the tectonism associated with the Himalayan orogenesis. The clays are reddish brown to buff in color containing montmorillonite, expandable mixed-layers, degraded chlorite, and illite. The clays were studied byX-ray diffractometry using standard techniques with copper radiation. The clay mineral distribution of the Middle Siwaliks indicates that the material was deposited under continental conditions in stream channels during periods of minimum current activity. The clays were deposited by slow sedimentation and are little affected by diagenesis. Further work in this area and elsewhere are now under progress to establish the relation of Siwalik sedimentation with the uplift of the Himalayas in the Tertiary period. 相似文献
18.
19.